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September 2025 Climate Summary

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

Heavy Rain Fog/Mist

63°F

17°C

Humidity	97%
Wind Speed	N 6 mph
Barometer	30.04 in (1017.0 mb)
Dewpoint	62°F (17°C)
Visibility	4.00 mi
Last update	6 Oct 11:51 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Roselle IL

Overnight
Low: 57 °F
Showers
Tuesday
High: 67 °F
Showers
Likely then
Isolated
Showers
Tuesday Night
Low: 47 °F
Mostly Clear
Wednesday
High: 64 °F
Sunny
Wednesday Night
Low: 44 °F
Clear
Thursday
High: 64 °F
Sunny
Thursday Night
Low: 44 °F
Mostly Clear
Friday
High: 67 °F
Mostly Sunny
Friday Night
Low: 49 °F
Partly Cloudy

Detailed Forecast

Overnight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 57. North wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

Showers likely, mainly before 10am. Cloudy, then gradual clearing during the afternoon, with a high near 67. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night

Mostly clear, with a low around 47. North wind 5 to 10 mph.

Wednesday

Sunny, with a high near 64. East northeast wind 5 to 10 mph.

Wednesday Night

Clear, with a low around 44. East wind around 5 mph, with gusts as high as 10 mph.

Thursday

Sunny, with a high near 64.

Thursday Night

Mostly clear, with a low around 44.

Friday

Mostly sunny, with a high near 67.